Glibc 2.36 added syscall wrappers for the entire family of fd-based
mount syscalls, including mount_setattr(2). Thus it's no longer
necessary to instruct users to do raw syscall(2) operations.
Signed-off-by: Aleksa Sarai <cyphar@xxxxxxxxxx>
---
man/man2/mount_setattr.2 | 45 +++++++--------------------------------------
1 file changed, 7 insertions(+), 38 deletions(-)
diff --git a/man/man2/mount_setattr.2 b/man/man2/mount_setattr.2
index 60d9cf9de8aa..c96f0657f046 100644
--- a/man/man2/mount_setattr.2
+++ b/man/man2/mount_setattr.2
@@ -10,21 +10,12 @@ .SH LIBRARY
.RI ( libc ,\~ \-lc )
.SH SYNOPSIS
.nf
-.BR "#include <linux/fcntl.h>" " /* Definition of " AT_* " constants */"
-.BR "#include <linux/mount.h>" " /* Definition of " MOUNT_ATTR_* " constants */"
-.BR "#include <sys/syscall.h>" " /* Definition of " SYS_* " constants */"
-.B #include <unistd.h>
+.BR "#include <fcntl.h>" " /* Definition of " AT_* " constants */"
+.B #include <sys/mount.h>
.P
-.BI "int syscall(SYS_mount_setattr, int " dirfd ", const char *" path ,
-.BI " unsigned int " flags ", struct mount_attr *" attr \
-", size_t " size );
+.BI "int mount_setattr(int " dirfd ", const char *" path ", unsigned int " flags ","
+.BI " struct mount_attr *" attr ", size_t " size );"
.fi
-.P
-.IR Note :
-glibc provides no wrapper for
-.BR mount_setattr (),
-necessitating the use of
-.BR syscall (2).
.SH DESCRIPTION
The
.BR mount_setattr ()
@@ -586,6 +577,7 @@ .SH HISTORY
.\" commit 7d6beb71da3cc033649d641e1e608713b8220290
.\" commit 2a1867219c7b27f928e2545782b86daaf9ad50bd
.\" commit 9caccd41541a6f7d6279928d9f971f6642c361af
+glibc 2.36.
.SH NOTES
.SS ID-mapped mounts
Creating an ID-mapped mount makes it possible to
@@ -914,37 +906,14 @@ .SH EXAMPLES
#include <err.h>
#include <fcntl.h>
#include <getopt.h>
-#include <linux/mount.h>
-#include <linux/types.h>
+#include <sys/mount.h>
+#include <sys/types.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <sys/syscall.h>
#include <unistd.h>
\&
-static inline int
-mount_setattr(int dirfd, const char *path, unsigned int flags,
- struct mount_attr *attr, size_t size)
-{
- return syscall(SYS_mount_setattr, dirfd, path, flags,
- attr, size);
-}
-\&
-static inline int
-open_tree(int dirfd, const char *filename, unsigned int flags)
-{
- return syscall(SYS_open_tree, dirfd, filename, flags);
-}
-\&
-static inline int
-move_mount(int from_dirfd, const char *from_path,
- int to_dirfd, const char *to_path, unsigned int flags)
-{
- return syscall(SYS_move_mount, from_dirfd, from_path,
- to_dirfd, to_path, flags);
-}
-\&
static const struct option longopts[] = {
{"map\-mount", required_argument, NULL, \[aq]a\[aq]},
{"recursive", no_argument, NULL, \[aq]b\[aq]},
--
2.50.1
